Shuttle operating device



, Nov. 15, 1938. J. F. ROURKE 2,136,712

SHUTTLE OPERATING- DEVICE Filed June 23, 1936 2 Sheets-Sheet l Nov. 15, 1938. I ROURKE 2,136,712

SHUTTLE OPERATING DEVICE Filed June 23, 1936 2 Sheets-Sheet 2' 7:9- fizz/5):

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Patented Nov. 15, 1938 UNITED STATES PATENT OFFIQE SHUTTLE OPERATING DEVICE James F. Rourke, Worcester, Mass. Application June 23, 1936, Serial No. 86,811 6 Claims. (01. 139-133) The principal objects of this invention are to eliminate the picker stick and the whole picking motion of a loom for the purpose of eliminating vibration, noise and wear; to provide submerged ways for the yarn so that, when the shuttle moves over the yarn, friction will be materially reduced; to provide a construction in which the picker motion produces no sharp bang or other sudden action, but the action is gentle; to pro vide a nipper shuttle adapted to get filling from a stationary supply at either or both ends of the machine; to provide a tractor shuttle which will run over a wide space on raceway rods; to provide an ordinary shuttle to be propelled with two uprights from the shuttle or a nipper shuttle to be propelled by one upright. at the center of the shuttle; to provide a construction in which a magnet is not ordinarily used but can be used on extreme widths to obtain the momentum of the shuttle, and to provide a construction which can be used in connection with my previous Patent No. 1,976,095 with a magnet with cloth 'of extraordinary width.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be hadto the accompanying drawings, in which Fig. 1 is an end view of a loom equipped with a preferred embodiment of this invention;

Fig. 2 is a front elevation of a part of the lay;

Fig. 3 is a plan of the lay;

Fig. 4 is a sectional view of the lower carriage on the line 4-4 of Fig. 3;

Fig. 5 is a sectional view of the lower carriage on the line 5-5 of Fig. 3;

Fig. 6 is a side view of a modified shuttle, and

Fig. 7 is a plan thereof. I

This is an improvement over the type of loom disclosed in my prior Patent No. 1,976,095, patented October 9, 1934.

The invention is shown as applied to a loom of well known characteristics except that it has no picker stick and no picker stick motion. It has the usual lay sword ID on which is mounted the lay l8 carrying a three rail track II. A lower carriage l2 having wheels l3 runs on the track and is provided with means not shown which operates the wheels '3 to traverse the carriage along the track. The means for operating the carriage I 2 does not constitute a part of-this invention. At the top are two pairs of, preferably rubber tired, wheels l5 which are also rooved. Apair of parallel or raceway rods I'l, preferably cylindrical, constitute a shuttle carrier. The rods I! are secured tothe lay l8 by means of rods 19. It is to be noticed in passing that these rods H are provided throughout the portion in which the yarn crosses them with a series of notches 20. The lower half of the shed passes through these notches which have inclined sides.

Therefore, the yarn is located under the surface of the rods ll and is not engaged by the wheels 2! of the upper carriage 22 which contains the shuttle. The usual shed 23 is formed. The usual reeds on the lay I8, harnesses 24, and lease rods 25 are used in the ordinary way except that, as stated, the lower yarn of the shed passes through the cross ways notches of'the rods ll, thusreducing or eliminating the friction between the wheels 2| and the yarn. This feature is called the submerging of the warp in the raceway.

On the carriage I 2 at each end is mounted a plate trigger 21 held in a projecting position by a spring 28 on a rod 29 which is fixed to the 1 end of the trigger and guided by a bracket 38. As the carriage moves along the tracks the end of the trigger, which is of curved shape, comes into contact with the stationary cam 26 and the trigger is pushed in. When the trigger is in its set position, as shown in Fig. 3, a spring-pressed vertical rod 3| is held in a bracket 32. The rod 1 is supported on the top of the trigger plate 21 by the fact that the rod 3| is provided with a sharp cornered notch 33 which is held in elevated position in a notch 34 in the plate 21. The pulling in of the plate 21 releases the vertical rod and the spring thereon forces it down. In order to set it up it has to be pushed up by a cam 39 which the bottom of the rod 31 engages at the end of its stroke. This will release the plate 21 and allow the spring 28 to move it to such a point that the edge of the hole will hold it up. The rod 3|, when pushed up, comes against a fiat surface 35 atone end of the shuttle carriage 22. Consequently the movement of the carriage l2 will carry with it the shuttle which is located in the upper carriage 22.

The upper carriage 22 is carried along with it through one of the rods 3| until the carriage l2 reaches the shed. At that time the cam 39 cperates the plate 21 and releases the upper shuttle carriage 22. It is carried across the shed by momentum and the lower half of the shed, being submerged in the notches 20, gives the wheels 2| very little friction or resistance of any kind. The carriage 12 passes through under the shed until it gets across the loom and the two carriages go together and finally are stopped in a suitable manner not shown and then are started back again in the same way.

It will be observed that in Fig. 3 this upper carriage or shuttle box is made the same at each end and one of these rods 3| is located at each end so as to carry the shuttle box back and forth, one of the rods being in use in either case.

The shuttle in the carriage 22 gets its filling from a stationary supply at either or both ends of the machine. In the form shown in Figs. 1 and 5 the ordinary shuttle is propelled with two upwardly extending rods 3|, one moving it in one direction and the other in the other.

In the form shown in Figs. 6 and '7 this shuttle is propelled by one rod 36 which extends upwardly in the center into a space 31 between two springs 38 which project inwardly from the ends along the bottom of this shuttle. Two cams are also needed to operate this rod 36 as two cams are needed to operate the two rods 3| in the other form shown.

A magnet can be used on extreme widths of cloth to maintain momentum after the carriage i2 is stopped. The main features of this invention can be used in connection with the magnet operated loom shown in my Patent No. 1,976,095 for excessive widths of cloth. In this case the carriage l2 can be reciprocated by the means shown in said patent.

In either form shown, or in any form coming within the scope of this invention, there being no picker, there is no sudden blow given by it and the machinery is not used so severely but a gentle action is provided eliminating vibration and noise.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. In a pickerless loom having a lay, the combination of a track extending across the lay, a carriage movable along the track, grooved wheels mounted on the carriage near the top, two parallel rods in fixed position located in the grooves and guiding the wheels, an upper carriage carrying a bobbin, the upper carriage having grooved wheels movable along said rods, and vertically movable means extending up from the lower carriage to propel the upper carriage.

2. In a pickerless loom having a lay, the combination of a track extending across the lay, a

carriage movable along the track, wheels mounted on the carriage near the top, two parallel rods in fixed position guiding the Wheels, an upper carriage carrying a bobbin, the upper carriage having wheels movable along said rods, and positive means adapted to move up from the lower carriage above said rods alternately to propel the upper carriage.

3. In a pickerless loom having a lay, the combination of a track extending across the lay, a carriage movable along the track, two parallel rods in fixed position for guiding the top of the carriage, an upper carriage carrying a bobbin movable along said rods, and means extending up from each end of the lower carriage to engage the end of the upper carriage to propel it positively.

4. In a pickerless loom having a lay, the combination of a track extending across the lay, a carriage movable along the track, fixed rods for guiding the top of the carriage, an upper carriage carrying a bobbin movable along said rods, means extending up from the center of the lower carriage to enter the upper carriage to propel it.

5. In a pickerless loom, the combination of a track extending across the loom on the lay, a carriage movable on the track, Wheels on the carriage at the top thereof, two parallel fixed horizontal rods located in a position to guide said wheels, 2. plate on the carriage, an upper bobbin carriage, a rod extending up from the lower carriage to the upper carriage, a movable plate on the lower carriage, said rod resting on the plate, a cam along the side of the lay for releasing said plate and disengaging it from the rod, and a spring adapted to pull down the rod when the plate is released.

6. In a loom, the combination of shed making devices, a lay having a track along it, a lower carriage movable along said track, a pair of horizontal rods above said carriage having notches on their upper surfaces for receiving and submerging the yarn, a shuttle carriage movable on said rods and vertically movable, and means carried by the first named carriage for engaging the shuttle carriage so that the lower carriage can be entirely disconnected from the shuttle carriage just before they reach the shed and the upper carriage carrying the bobbin will move by momentum across the entire shed.

JAMES F. BOURKE. 

